Water, acid, and fire proof composition.



UNITED STATES PATENT FFICE.

JOHN A. HEANY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THETETER-HEANY DEVELOPING COMPANY, OF PHILADELPHIA, PENNSYL- VANIA, ANDCHARLESTON, VEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

WATER, ACID, AND FlRE PROOF COMPOSITION.

SPECIFICATION forming part of Letters Patent No. '7 03,199, dated June24, 1902.

Application filed November 11, 1901. Serial No. 81,830. (No specimens.)

To all whom it may concern:

Be it known that I, JOHN ALLEN HEANY, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Vater, Acid, and Fire Proof Compositions and Method of Making theSame, of which the following is a specification.

Myinvention has relation to a composition of matter designed to rendermetallic conductors waterproof, fireproof, and acid-proof; and in suchconnection it relates to the ingredients forming such a composition.

The principal ingredients in the improved composition of matter and themanner in which the same are combined is as follows: Linseed-oil orequivalent oil, one pint or fifteen ounces,is firstheated to theboiling-point, and then one ounce of litharge and one ounce of red leadare first thoroughly mixed or mortared together and then incorporated oradded to the boiling linseed-oil. The mixture is then boiled and stirredfor about one hour, and then add, if desired, copal gum. This mixture isthen again boiled until the mass becomes thick and black, at which pointall or nearly all the free or volatile linic acid, when linseed-oil isused, has been driven off, the stable linic or other acid combining withthe metallic oxids, forming a metallic compound. When this compound iscool, it is hard or solid and somewhat of a gummy nature. It is appliedto the substance to be coated in a heated condition, and when it coolson the substance it is pliable and readily flexes with the substance.The compound thus formed is particularly desirable for use onasbestos-insulated wires or metallic surfaces, since it readily adheresto or penetrates the asbestos and renders the same unattackable bywater, acid, or heat.

Having thus described the nature and ob ject of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. A water, acid and fire proofinsulation for metallic conductors,consisting of a covering of asbestos coated with a mixture of oil andmetallic oxids, said mixture combined by boil.- ing until the free acidof the oil has been driven off.

2. A water, acid and fire proof insulation for metallic conductors,consisting of a covering of asbestos united to the part to be insulatedand then coated with a mixture of oil and metallic oxids.

3. A water, acid and fire proof insulation for metallic conductors,consisting of a layer of asbestos covering the surface to be insulatedand a coating of oil combined with metallic oxids applied directly tothe covering of as bestos.

a. A water, acid and fire proof insulation to r metallic conductors,comprising a covering of asbestos, coated with oil, redlead and lithargecombined by boiling until the free acid of the oil has been driven off.

5. The method of insulating metallic c011- ductors which consists infirst covering the surface to be insulated with asbestos, second forminga mixture of oil and metallic oxids by boiling the oil and oxids untilthe free acid of the oil has been driven off and finally coating theasbestos covering with the mixture of oil. and metallic oxids thusformed.

In testimony whereof I have hereunto set my signature in the presence oftwo subscrib ing witnesses.

JOHN A. IIEANY.

W'itnesses:

J. WALTER DoUcLAss, THOMAS M. SMITH.

